Refrigeration – With indicator or tester – Position or extent of motion of movable element
Patent
1996-12-12
1998-10-20
Tanner, Harry B.
Refrigeration
With indicator or tester
Position or extent of motion of movable element
62180, 318266, 318286, 340686, F25B 4900
Patent
active
058230025
ABSTRACT:
This invention involves an air conditioner and method of its operation capable of preventing undesirable power consumption, prolonging the useful life of its parts, and improving operational efficiency through prevention of its malfunction. For an air conditioner having an intake inlet for taking in an indoor air, a heat-exchanger for heating-exchanging the indoor air, a discharge outlet to discharge the heat-exchanged air, and a discharge outlet door to be closed for preventing dusts or foreign substances from passing through the discharge outlet in a stand-by mode of the air conditioner, which door is to be opened for discharging the heat-exchange air in an operational mode of the air conditioner, the air conditioner includes a control unit for generally controlling air conditioning, a door motor driving unit for controlling a drive for the door motor such that, in response to a control signal from the control unit, the door is moved upward or downward to open or close the discharge outlet, a door position detecting unit for detecting a current position of the door and for providing a detection signal to the control unit, and a voltage switching unit for controlling a driving voltage to be supplied to the door position detecting unit in response to either fully up or down moved states of the door.
REFERENCES:
patent: 4362975 (1982-12-01), Orsini
patent: 4533905 (1985-08-01), Leivenzon et al.
patent: 4882913 (1989-11-01), LaCount, II et al.
patent: 5461875 (1995-10-01), Lee et al.
Samsung Electronics Co,. Ltd.
Tanner Harry B.
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